/Engine/Source/Runtime/Experimental/Chaos/Public/RewindData.h
Query the state of particles from the past. Can only be used when not already resimming
[FGeometryParticleState](API\Runtime\Chaos\FGeometryParticleState) GetPastStateAtFrame ( const [FGeometryParticleHandle](API\Runtime\Chaos\Chaos\FGeometryParticleHandle) & Handle, int32 Frame, [FFrameAndPhase::EParticleHistoryPhase](API\Runtime\Chaos\FFrameAndPhase\EParticleHistoryPhase) Phase ) const